Definition of nannofossil in English:


Syllabification: nan·no·fos·sil
Pronunciation: /ˈnanōˌfäsəl
(also nanofossil)


The fossil of a minute planktonic organism, especially a calcareous unicellular alga.
More example sentences
  • This paper presents high-resolution data from calcareous nannofossils, planktic Foraminifera, palynomorphs and stable isotopes for the Late Albian OAE Id.
  • In the seas, the calcareous nannofossils were still in evidence but in shallow waters the benthonic nummulite and other larger foraminifera became very abundant.
  • The same samples as used for geochemistry were investigated for their content of calcareous nannofossils.


1960s: nanno- from nannoplankton (variant of nanoplankton) + fossil.

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